Browsing Tag 'Geographic variation'
Pearl mussels can vary greatly in lifespan over latitudinal and temperature gradients. Bergmann’s rule within physiological ecology postulates that animals get larger at higher latitudes and altitudes. Similarly, the temperature-size rule predicts that although animals grow more slowly at cold temperatures, they reach a larger adult size (but see Angiletta and Dunham 2003). A study [...]
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